Date: Tue, 3 Feb 2009 08:23:09 -0800 From: "David O'Brien" <obrien@FreeBSD.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: arch@FreeBSD.org Subject: Re: svn commit: r187132 - head/usr.bin/make Message-ID: <20090203162309.GD33520@dragon.NUXI.org> In-Reply-To: <20090203.085631.-2006820702.imp@bsdimp.com> References: <20090202220628.GA76833@dragon.NUXI.org> <9061.1233646810@critter.freebsd.dk> <20090203154013.GA33520@dragon.NUXI.org> <20090203.085631.-2006820702.imp@bsdimp.com>
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On Tue, Feb 03, 2009 at 08:56:31AM -0700, M. Warner Losh wrote: > In message: <20090203154013.GA33520@dragon.NUXI.org> > "David O'Brien" <obrien@FreeBSD.org> writes: > : Warner made a baseless 10% performance claim and used it as the > : bases for a commit. > > The claim was not baseless. It merely reflects results that were > old. Where were the runtime numbers? The standard deviation? Ministat output? Details of the machine run on? Information on the storage. You finally mentioned this was on FreeBSD 4.x, 5.2, and 6.0 build machines. A lot has changed since November 2005. And you were timing non-j build's - yet your change was all about parallel builds, it only affected 'make -j'. -- -- David (obrien@FreeBSD.org)
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